New Here need help with cooling system - Pontiac G6 Forum
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post #1 of 2 (permalink) Old 01-18-2016, 12:50 PM Thread Starter
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Join Date: Jan 2016
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New Here need help with cooling system

Hello I just registered on here trying to find answers. ive always used these forums for reference when I have questions on my Ponitac g6 GT 09. Now if someone can help me out I would really appreciate the advice.

ok so, my car has been losing coolant from the reservoir slowly. I have checked for leaks but could not find any. I usually would top off the coolant and it would be ok for the next couple of days but would need to add more after a week or so. also my heater will not blow hot air until I get the car on the freeway at 45mph or higher which is really frustrating. for the past 2 weeks I have noticed when im on the freeway going 60-80 mph my temp rises above what the normal temp should be. it rises a bar from where its suppose to be at, but if I stay at steady speed it usually slowly goes back down. Ive been reading a lot of different things on forums and other sources. some say it could be the water pump going bad, others say I could have air in the cooling system. Also read it could be clogged heater core lines. I changed the thermostat a few months ago so im almost positive it cant be that unless I have a faulty one.

Please any insight and advice would be greatly appreciated.
richvaldez0691 is offline  
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post #2 of 2 (permalink) Old 01-19-2016, 08:32 PM
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Join Date: Jan 2014
Location: RTP Area, NC
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I would start with the low cost option of trying to get any trapped air out of the system. I think I got most of mine out forcibly squeezing the top radiator hose. There is also a video that may help although I did not use this technique myself.

Lets hope that you are slowly displacing the air which may account for the coolant level drop.
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